FRANK Solutions for Class 9 Maths Chapter 18 - Rectilinear Figures

Understand polygons with Frank Solutions for ICSE Class 9 Mathematics Chapter 18 Rectilinear Figures. Learn to use the correct theorems for calculating the sum of interior angles of a polygon or sum of exterior angles of a polygon. Also, practise how to calculate the measurement of each angle of a polygon with our chapter solutions.

Revising the Frank textbook solutions for ICSE Class 9 Maths can help you to brush up the concepts on how to find the number of sides of a given polygon. Further, if you have any doubts related to rectilinear figures, visit the ‘UnDoubt’ platform at TopperLearning for answers from experts.

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Chapter 18 - Rectilinear Figures Exercise Ex. 18.1

Question 1
Frank Solutions Icse Class 9 Mathematics Chapter - Rectilinear Figures
Solution 1
Frank Solutions Icse Class 9 Mathematics Chapter - Rectilinear Figures
Question 2
Frank Solutions Icse Class 9 Mathematics Chapter - Rectilinear Figures
Solution 2
Frank Solutions Icse Class 9 Mathematics Chapter - Rectilinear Figures
Question 3
Frank Solutions Icse Class 9 Mathematics Chapter - Rectilinear Figures
Solution 3
Frank Solutions Icse Class 9 Mathematics Chapter - Rectilinear Figures
Question 4
Frank Solutions Icse Class 9 Mathematics Chapter - Rectilinear Figures
Solution 4
Frank Solutions Icse Class 9 Mathematics Chapter - Rectilinear Figures
Question 5
Frank Solutions Icse Class 9 Mathematics Chapter - Rectilinear Figures
Solution 5
Frank Solutions Icse Class 9 Mathematics Chapter - Rectilinear Figures
Question 6
Frank Solutions Icse Class 9 Mathematics Chapter - Rectilinear Figures
Solution 6
Frank Solutions Icse Class 9 Mathematics Chapter - Rectilinear Figures
Question 7
Frank Solutions Icse Class 9 Mathematics Chapter - Rectilinear Figures
Solution 7
Frank Solutions Icse Class 9 Mathematics Chapter - Rectilinear Figures
Question 8
Frank Solutions Icse Class 9 Mathematics Chapter - Rectilinear Figures
Solution 8
Frank Solutions Icse Class 9 Mathematics Chapter - Rectilinear Figures
Question 9
Frank Solutions Icse Class 9 Mathematics Chapter - Rectilinear Figures
Solution 9
Frank Solutions Icse Class 9 Mathematics Chapter - Rectilinear Figures
Question 10
Frank Solutions Icse Class 9 Mathematics Chapter - Rectilinear Figures
Solution 10
Frank Solutions Icse Class 9 Mathematics Chapter - Rectilinear Figures
Question 11
Frank Solutions Icse Class 9 Mathematics Chapter - Rectilinear Figures
Solution 11
Frank Solutions Icse Class 9 Mathematics Chapter - Rectilinear Figures
Question 12
Frank Solutions Icse Class 9 Mathematics Chapter - Rectilinear Figures
Solution 12
Frank Solutions Icse Class 9 Mathematics Chapter - Rectilinear Figures
Question 13
Frank Solutions Icse Class 9 Mathematics Chapter - Rectilinear Figures
Solution 13
Frank Solutions Icse Class 9 Mathematics Chapter - Rectilinear Figures
Question 14
Frank Solutions Icse Class 9 Mathematics Chapter - Rectilinear Figures
Solution 14
Frank Solutions Icse Class 9 Mathematics Chapter - Rectilinear Figures
Question 15
Frank Solutions Icse Class 9 Mathematics Chapter - Rectilinear Figures
Solution 15
Frank Solutions Icse Class 9 Mathematics Chapter - Rectilinear Figures
Question 16(a)

Is it possible to have a polygon whose sum of interior angles is 780°?

Solution 16(a)

Frank Solutions Icse Class 9 Mathematics Chapter - Rectilinear Figures

Question 16(b)

Is it possible to have a polygon whose sum of interior angles is 7 right angles?

Solution 16(b)

Frank Solutions Icse Class 9 Mathematics Chapter - Rectilinear Figures

Question 17(a)

Is it possible to have a polygon whose each interior angle is 124°?

Solution 17(a)

Frank Solutions Icse Class 9 Mathematics Chapter - Rectilinear Figures

Question 17(b)

Is it possible to have a polygon whose each interior angle is 105°?

Solution 17(b)

Frank Solutions Icse Class 9 Mathematics Chapter - Rectilinear Figures

Question 18

A heptagon has three angles equal to 120°, and the other four angles are equal. Find all the angles.

Solution 18

Frank Solutions Icse Class 9 Mathematics Chapter - Rectilinear Figures

Question 19

Frank Solutions Icse Class 9 Mathematics Chapter - Rectilinear Figures

Solution 19

 

Frank Solutions Icse Class 9 Mathematics Chapter - Rectilinear Figures

Frank Solutions Icse Class 9 Mathematics Chapter - Rectilinear Figures

Question 20

In a polygon, there are 3 right angles and the remaining angles are equal to 165°. Find the number of sides in the polygon.

Solution 20

Frank Solutions Icse Class 9 Mathematics Chapter - Rectilinear Figures

Question 21

ABCDE is a pentagon in which AB is parallel to DC and Frank Solutions Icse Class 9 Mathematics Chapter - Rectilinear Figures Find angle A.

Solution 21

Frank Solutions Icse Class 9 Mathematics Chapter - Rectilinear Figures

 

Frank Solutions Icse Class 9 Mathematics Chapter - Rectilinear Figures

Question 22

If the difference between an exterior angle of a regular polygon of 'n' sides and an exterior angle of another regular polygon of '(n + 1)' sides is equal to 4o; find the value of 'n'.

Solution 22

Frank Solutions Icse Class 9 Mathematics Chapter - Rectilinear Figures

Question 23

The number of sides of two regular polygons are in the ratio 2 : 3 and their interior angles are in the ratio 9 : 10. Find the number of sides of each polygon.

Solution 23

Frank Solutions Icse Class 9 Mathematics Chapter - Rectilinear Figures

Question 24

Frank Solutions Icse Class 9 Mathematics Chapter - Rectilinear Figures

Solution 24

Frank Solutions Icse Class 9 Mathematics Chapter - Rectilinear Figures

Question 25

Frank Solutions Icse Class 9 Mathematics Chapter - Rectilinear Figures

Solution 25

Frank Solutions Icse Class 9 Mathematics Chapter - Rectilinear Figures

Question 26

Frank Solutions Icse Class 9 Mathematics Chapter - Rectilinear Figures

Solution 26

Frank Solutions Icse Class 9 Mathematics Chapter - Rectilinear Figures

Question 27

Frank Solutions Icse Class 9 Mathematics Chapter - Rectilinear Figures

Solution 27

Frank Solutions Icse Class 9 Mathematics Chapter - Rectilinear Figures

Question 28

Frank Solutions Icse Class 9 Mathematics Chapter - Rectilinear Figures

Solution 28

Frank Solutions Icse Class 9 Mathematics Chapter - Rectilinear Figures

Question 29

Frank Solutions Icse Class 9 Mathematics Chapter - Rectilinear Figures

Solution 29

Frank Solutions Icse Class 9 Mathematics Chapter - Rectilinear Figures

Question 30

Frank Solutions Icse Class 9 Mathematics Chapter - Rectilinear Figures

Solution 30

Frank Solutions Icse Class 9 Mathematics Chapter - Rectilinear Figures

Question 31

Frank Solutions Icse Class 9 Mathematics Chapter - Rectilinear Figures

Solution 31

Frank Solutions Icse Class 9 Mathematics Chapter - Rectilinear Figures

Question 32

Frank Solutions Icse Class 9 Mathematics Chapter - Rectilinear Figures

Solution 32

Frank Solutions Icse Class 9 Mathematics Chapter - Rectilinear Figures

Question 33

Frank Solutions Icse Class 9 Mathematics Chapter - Rectilinear Figures

Solution 33

Frank Solutions Icse Class 9 Mathematics Chapter - Rectilinear Figures

 

Frank Solutions Icse Class 9 Mathematics Chapter - Rectilinear Figures

 

Question 34

Frank Solutions Icse Class 9 Mathematics Chapter - Rectilinear Figures 

Solution 34

Frank Solutions Icse Class 9 Mathematics Chapter - Rectilinear Figures

Frank Solutions Icse Class 9 Mathematics Chapter - Rectilinear Figures

Question 35

In a regular pentagon PQRST, PR = QT intersect at N. Find the angle RQT and QNP.

Solution 35

Frank Solutions Icse Class 9 Mathematics Chapter - Rectilinear Figures

Frank Solutions Icse Class 9 Mathematics Chapter - Rectilinear Figures

Question 36

Each exterior angle of a regular polygon is Frank Solutions Icse Class 9 Mathematics Chapter - Rectilinear Figurestimes of its interior angle. Find the number of sides in the polygon.

Solution 36

Frank Solutions Icse Class 9 Mathematics Chapter - Rectilinear Figures

Question 37

Each interior angle of a regular polygon is 162°. Another regular polygon has number of sides double the first polygon. Find each interior angle of the second polygon.

Solution 37

Frank Solutions Icse Class 9 Mathematics Chapter - Rectilinear Figures